Bump version: 1.1.1.38-9f2b-dirty → 1.2.0

Change-Id: I9009eb44e7d8100294da139300480fc3a2f6b616
diff --git a/debian/control b/debian/control
index 750f7b9..de4be16 100644
--- a/debian/control
+++ b/debian/control
@@ -14,7 +14,7 @@
                libtalloc-dev,
                libusrp-dev,
                liblimesuite-dev,
-               libosmocore-dev (>= 0.12.0),
+               libosmocore-dev (>= 1.3.0),
                osmo-gsm-manuals-dev
 Standards-Version: 3.9.6
 Vcs-Browser: http://cgit.osmocom.org/osmo-trx